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Crankshaft Grinding Machine

Crankshaft Grinding Machine

MQ8260A-1600-Crankshaft Grinding Machine

MQ8260A crankshaft grinding machine is designed and manufactured on the basis of the Model MQ8206. It is used to grind the journals and crankpins of engine crankshafts. Due to its consistent quality and reliability, the crankshaft grinder is sought after by factories and repair shops of automobiles, tractors and diesel engines.

Structural Features
1. Three different rotational speeds can be achieved by making use of the belts in the headstock.
2. Cross chucks are used in the headstock and tailstock.
3. The headstock transmission chain adopts friction coupling for easy adjustment.
4. The table of the crankshaft grinding machine is operated either by hand or by power.
5. The wheelhead is hydraulically controlled, which moves forward and backward very quickly.
6. The wheel spindle being of 80mm in diameter has good rigidity and strength.
7. The bed ways and wheelhead are lubricated in an automatic cycle by means of the oil pump.

Main Specifications of Crankshaft Grinding Machine

Max. workpiece swing diameter × Max workpiece length Φ580×1600mm
1. Max. swing over table Φ580mm
Workpiece diameter ground with steady rest Φ30~Φ100mm
Turning radius of crankshaft 110mm
2. Max. workpiece length ground
In 3-jaw chuck 1400mm
Between centers 1600mm
3. Max. workpiece weight 120kg
Work head
1. Center height 300mm
2. Work speed 25、45、95r/min
1. Max. cross movement 185mm
2. Wheelhead rapid forward and backward movement 100mm
Wheelhead feed per turnoff cross fed hand wheel 1mm
Per grad. of cross feed hand wheel 0.005mm
Grinding wheel
1. Wheel spindle speed (2steps) 740.890r/min
2. Wheel peripheral speed 25.6-35m/sec
3. Wheel size (O. D .× width ×Bore) Φ900×32×Φ305mm
1. Table traverse per turn of hand wheel Coarse 5.88mm
Fine 1.68mm
2. Table swivel (taper 18/100)
3. Table swivel per grad of scale (taper 1:50) 10′
Overall capacity of motors 9.82kw
Overall dimensions (L×W×H) 4166×2037×1584
Weight Approx. 6000kg
Working Accuracy Main Accessories
Ovality Cylindricity Roughness Jaw chucks 2sets
≤0.01mm ≤0.01mm Ra 0.32 Wheel dresser 1set
Optional Accessories (at extra cost) Wheel balancing arbor(Φ80) 1set
Wheel balancing stand HJX-85-04 1set Leveling wedge 11set
End dresser 1set Wheel adaptor 1set
Hanging type measuring device of 1set Driving dog 1set
Vertical aligning stand 1set
Horizontal aligning stand 1set
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